Cadillac Ciel

The Ciel — French for “sky” — is a big, bold four-seat convertible, featuring rear-hinged doors, sustainable wood paneling and massive 22-inch wheels. The most defining element of the Ciel is its Italian olive wood interior trim, made from a single fallen 300-year-old tree. While the Ciel in its current form may never see the showroom floor, Cadillac plans to expand its lineup with 10 new throwback rides, beginning in 2014.